From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleg Drokin Subject: Re: corrupted fs: bitmap does not match to the correct one.... Date: Thu, 16 May 2002 09:13:32 +0400 Message-ID: <20020516091332.B6596@namesys.com> References: <20020515180609.A2073@namesys.com> <10725.1021478209@www24.gmx.net> Mime-Version: 1.0 Return-path: list-help: list-unsubscribe: list-post: Content-Disposition: inline In-Reply-To: <10725.1021478209@www24.gmx.net> List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: grobe@gmx.net Cc: reiserfs-list@namesys.com Hello! On Wed, May 15, 2002 at 05:56:49PM +0200, grobe@gmx.net wrote: > > Ah, failing hardware. > That's funny. As I mentioned, we use a Serveraid 4m Raid Controller. So, if > a disk fails, the controller switches it off, sends me a warning messages and > downgrades from RAID5 to RAID0. But the controller tells me that there are Hm. I am not sure it is possible to downgrade from raid5 to raid0. Also if you loose more than one disk, operations are impossible anymore. > no errors. It seams to be something in the driver-kernel-lvm-chain. May be so. At least errors are appearing on block layer already. > > Also you probably want to ask whoever sold you the failing harddrive to > > replace it. > As I wrote, the "harddrive" is a logical volume on a raid 5 array, attached > to a serveraid 4 m - so I would have to bring an entire server if I want to > replace the failing hardware ;-) Hm. If I were you, I'd probably go this route, anyway. :) The other possibility is to dig deep into LVM and serverraid sources and to see why does it produces I/O errors if hardware does not report any errors. > The new reiserfsck --rebuild-tree gives me > pass 0: reading block (xxxx) failed So, it still cannot read blocks. What are those xxxx, btw? Do they look correct? (in range of actual volume size?) > Is this REALLY only possible with bad hardware, or also with lvm-problems, > raid-driver problems etc...? This ispossible with bad hardware or bad drivers, but I cannot tell you which case is yours because I do not know. Bye, Oleg